Directions to download PSP wallpapers (Windows):
1. Left-Click (to make sure it is its largest view) on the wallpaper that you want.
2. Right-click on wallpaper, and select and left-click the "Save Picture As..." menu selection
3. Leave the filename as is or change it.
4. Left-click the "Save" button
Check out some of these sites where you can get about everything you would ever need for your PSP at one very low price. Never have to buy a game or movie again.
1. All PSP Games (wallpapers, movies, tv shows, music, themes, browser, screensavers, software and more)
2. PSP Games World (hacks, cheats, wallpapers, homebrews, movies, tv shows, screensavers, software and more)
3. PSP
Blender (game cheats, tv shows, wallpapers/backgrounds, music, game reviews, and more)
Enjoy!
Dodge Viper Convertible PSP Wallpaper

The Dodge Viper Convertible..this red very cool looking car costs about $75k US new. Now, that would be nice to have. Of course, I would also have to pay for the gas to fill it up with. Anyway, if I had money I think I might buy one...moving to California
would also help to get full use out of it. Anyway, at the least one can put this PSP Wallper in there PSP. Not quite as good but almost. :)
Remember to click on the pic to get full size.
Anime PSP Background wallpaper
Here is another anime
background wallpaper for your Playstation Portable. An d a little info on anime. Anime from the word "animation", in the western world most popularly refers to the medium of
animation originating in Japan, with distinctive character and background aesthetics . While some anime is entirely hand-drawn (at one time totally by hand), computer assisted animation techniques are, in recent years, quite common. Storylines are typically fictional; examples of anime representing most major genres of fiction exist. Info by wikipedia
WHite Dwarf in Space PSP Wallpaper

Here you will see a depiction of a cloud of dust around this white dwarf that may have been generated from this type of comet disruption. This was observed by the Spitzer Space Telescope at NASA. This artist's concept shows a comet being shredded around a dead star, or white dwarf, commonly known as G29-38 in the space community. This data found suggests that a host of other surviving comets may still orbit in this long-dead solar system.
According to theory, the G29-38 star became brighter and brighter as it aged, until it bloated up into a dying star called a red giant. Around 3 times as big as our sun, the white dwarf began life as a star. Its final ending involved the same escalation of steps that our sun will eventually undergo in the future billions of years from now. This red giant was large enough to engulf and evaporate any terrestrial planets like Earth that happened to be in its way. Later, the red giant shed its outer atmosphere, leaving behind a shrunken skeleton of star, called a white dwarf.
Credit for this original photo goes to NASA/JPL-Caltech